//! Plotly绘图模块
//! 
//! 使用 Plotly 构建绘图模块

use std::collections::HashMap;
use serde::{Deserialize, Serialize};
use chrono::{DateTime, Utc};
use crate::objects::bar::RawBar;

/// K线绘图工具类
pub struct KlineChart {
    /// 子图数量
    pub n_rows: usize,
    /// 行高度配置
    pub row_heights: Vec<f64>,
    /// 颜色配置
    pub color_red: String,
    pub color_green: String,
    /// 图表配置
    pub title: String,
    pub height: usize,
    pub y_fixed_range: bool,
}

impl KlineChart {
    /// 创建新的K线图表
    pub fn new(n_rows: usize, kwargs: &HashMap<String, serde_json::Value>) -> Self {
        let row_heights = if let Some(heights) = kwargs.get("row_heights") {
            // TODO: 从JSON解析行高度
            vec![0.6, 0.2, 0.2]
        } else {
            match n_rows {
                3 => vec![0.6, 0.2, 0.2],
                4 => vec![0.55, 0.15, 0.15, 0.15],
                5 => vec![0.4, 0.15, 0.15, 0.15, 0.15],
                _ => vec![0.6, 0.2, 0.2],
            }
        };
        
        let title = kwargs.get("title")
            .and_then(|v| v.as_str())
            .unwrap_or("")
            .to_string();
        
        let height = kwargs.get("height")
            .and_then(|v| v.as_u64())
            .unwrap_or(300) as usize;
        
        let y_fixed_range = kwargs.get("y_fixed_range")
            .and_then(|v| v.as_bool())
            .unwrap_or(true);
        
        Self {
            n_rows,
            row_heights,
            color_red: "rgba(249,41,62,0.7)".to_string(),
            color_green: "rgba(0,170,59,0.7)".to_string(),
            title,
            height,
            y_fixed_range,
        }
    }
    
    /// 绘制K线
    pub fn add_kline(&mut self, kline: &[RawBar], name: &str, kwargs: &HashMap<String, serde_json::Value>) {
        // TODO: 实现K线绘制
        // 这里需要调用plotly的API来绘制K线图
        println!("绘制K线: {}", name);
    }
    
    /// 绘制成交量
    pub fn add_vol(&mut self, kline: &[RawBar], row: usize, kwargs: &HashMap<String, serde_json::Value>) {
        // TODO: 实现成交量绘制
        println!("绘制成交量: 行 {}", row);
    }
    
    /// 绘制均线
    pub fn add_sma(&mut self, kline: &[RawBar], row: usize, ma_seq: &[usize], visible: bool, kwargs: &HashMap<String, serde_json::Value>) {
        // TODO: 实现均线绘制
        println!("绘制均线: 行 {}, 均线序列 {:?}", row, ma_seq);
    }
    
    /// 绘制MACD
    pub fn add_macd(&mut self, kline: &[RawBar], row: usize, kwargs: &HashMap<String, serde_json::Value>) {
        // TODO: 实现MACD绘制
        println!("绘制MACD: 行 {}", row);
    }
    
    /// 添加指标
    pub fn add_indicator(
        &mut self,
        dt: DateTime<Utc>,
        scatters: Option<&[f64]>,
        scatter_names: Option<&[String]>,
        bar: Option<&[f64]>,
        bar_name: &str,
        row: usize,
        kwargs: &HashMap<String, serde_json::Value>,
    ) {
        // TODO: 实现指标绘制
        println!("添加指标: 行 {}, 时间 {}", row, dt);
    }
    
    /// 添加标记指标
    pub fn add_marker_indicator(
        &mut self,
        x: &[DateTime<Utc>],
        y: &[f64],
        name: &str,
        row: usize,
        text: Option<&[String]>,
        kwargs: &HashMap<String, serde_json::Value>,
    ) {
        // TODO: 实现标记指标绘制
        println!("添加标记指标: {}, 行 {}", name, row);
    }
    
    /// 添加散点指标
    pub fn add_scatter_indicator(
        &mut self,
        x: &[DateTime<Utc>],
        y: &[f64],
        name: &str,
        row: usize,
        text: Option<&[String]>,
        kwargs: &HashMap<String, serde_json::Value>,
    ) {
        // TODO: 实现散点指标绘制
        println!("添加散点指标: {}, 行 {}", name, row);
    }
    
    /// 添加柱状图指标
    pub fn add_bar_indicator(
        &mut self,
        x: &[DateTime<Utc>],
        y: &[f64],
        name: &str,
        row: usize,
        color: Option<&str>,
        kwargs: &HashMap<String, serde_json::Value>,
    ) {
        // TODO: 实现柱状图指标绘制
        println!("添加柱状图指标: {}, 行 {}", name, row);
    }
    
    /// 在浏览器中打开
    pub fn open_in_browser(&self, file_name: Option<&str>, kwargs: &HashMap<String, serde_json::Value>) {
        // TODO: 实现在浏览器中打开
        let filename = file_name.unwrap_or("kline_chart.html");
        println!("在浏览器中打开: {}", filename);
    }
    
    /// 获取图表配置
    pub fn get_config(&self) -> HashMap<String, serde_json::Value> {
        let mut config = HashMap::new();
        config.insert("n_rows".to_string(), serde_json::Value::Number(self.n_rows.into()));
        config.insert("title".to_string(), serde_json::Value::String(self.title.clone()));
        config.insert("height".to_string(), serde_json::Value::Number(self.height.into()));
        config.insert("y_fixed_range".to_string(), serde_json::Value::Bool(self.y_fixed_range));
        config.insert("color_red".to_string(), serde_json::Value::String(self.color_red.clone()));
        config.insert("color_green".to_string(), serde_json::Value::String(self.color_green.clone()));
        config
    }
}

/// 绘制网络图
pub fn plot_nx_graph(g: &Graph, kwargs: &HashMap<String, serde_json::Value>) -> HashMap<String, serde_json::Value> {
    // TODO: 实现网络图绘制
    println!("绘制网络图");
    HashMap::new()
}

/// 简化的图结构
#[derive(Debug, Clone)]
pub struct Graph {
    pub nodes: Vec<Node>,
    pub edges: Vec<Edge>,
}

#[derive(Debug, Clone)]
pub struct Node {
    pub id: String,
    pub label: String,
    pub properties: HashMap<String, serde_json::Value>,
}

#[derive(Debug, Clone)]
pub struct Edge {
    pub source: String,
    pub target: String,
    pub label: String,
    pub properties: HashMap<String, serde_json::Value>,
}

impl Graph {
    /// 创建新的图
    pub fn new() -> Self {
        Self {
            nodes: Vec::new(),
            edges: Vec::new(),
        }
    }
    
    /// 添加节点
    pub fn add_node(&mut self, id: String, label: String, properties: HashMap<String, serde_json::Value>) {
        self.nodes.push(Node {
            id,
            label,
            properties,
        });
    }
    
    /// 添加边
    pub fn add_edge(&mut self, source: String, target: String, label: String, properties: HashMap<String, serde_json::Value>) {
        self.edges.push(Edge {
            source,
            target,
            label,
            properties,
        });
    }
}

/// 创建K线图表
pub fn create_kline_chart(n_rows: usize, kwargs: &HashMap<String, serde_json::Value>) -> KlineChart {
    KlineChart::new(n_rows, kwargs)
}

/// 绘制K线数据
pub fn plot_kline_data(
    bars: &[RawBar],
    title: &str,
    kwargs: &HashMap<String, serde_json::Value>,
) -> KlineChart {
    let mut chart = KlineChart::new(3, kwargs);
    
    // 添加K线
    chart.add_kline(bars, "K线", kwargs);
    
    // 添加成交量
    chart.add_vol(bars, 2, kwargs);
    
    // 添加MACD
    chart.add_macd(bars, 3, kwargs);
    
    chart
}

#[cfg(test)]
mod tests {
    use super::*;
    
    #[test]
    fn test_kline_chart_creation() {
        let mut kwargs = HashMap::new();
        kwargs.insert("title".to_string(), serde_json::Value::String("测试图表".to_string()));
        kwargs.insert("height".to_string(), serde_json::Value::Number(400.into()));
        
        let chart = KlineChart::new(3, &kwargs);
        
        assert_eq!(chart.n_rows, 3);
        assert_eq!(chart.title, "测试图表");
        assert_eq!(chart.height, 400);
    }
    
    #[test]
    fn test_graph_operations() {
        let mut graph = Graph::new();
        
        let mut node_props = HashMap::new();
        node_props.insert("weight".to_string(), serde_json::Value::Number(1.0.into()));
        
        graph.add_node("A".to_string(), "节点A".to_string(), node_props.clone());
        graph.add_node("B".to_string(), "节点B".to_string(), node_props.clone());
        
        let mut edge_props = HashMap::new();
        edge_props.insert("weight".to_string(), serde_json::Value::Number(0.5.into()));
        
        graph.add_edge("A".to_string(), "B".to_string(), "连接".to_string(), edge_props);
        
        assert_eq!(graph.nodes.len(), 2);
        assert_eq!(graph.edges.len(), 1);
    }
    
    #[test]
    fn test_chart_config() {
        let mut kwargs = HashMap::new();
        kwargs.insert("title".to_string(), serde_json::Value::String("测试".to_string()));
        
        let chart = KlineChart::new(3, &kwargs);
        let config = chart.get_config();
        
        assert!(config.contains_key("n_rows"));
        assert!(config.contains_key("title"));
        assert!(config.contains_key("height"));
    }
} 